EP2313216B1 - Procédé de fabrication d'un profilé laminé à froid présentant au moins un bord profilé épaissi - Google Patents

Procédé de fabrication d'un profilé laminé à froid présentant au moins un bord profilé épaissi Download PDF

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Publication number
EP2313216B1
EP2313216B1 EP09777439A EP09777439A EP2313216B1 EP 2313216 B1 EP2313216 B1 EP 2313216B1 EP 09777439 A EP09777439 A EP 09777439A EP 09777439 A EP09777439 A EP 09777439A EP 2313216 B1 EP2313216 B1 EP 2313216B1
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EP
European Patent Office
Prior art keywords
roller
metal strip
guide roller
thickened
profile
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP09777439A
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German (de)
English (en)
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EP2313216A1 (fr
Inventor
Thomas Welser
Kurt Aigner
Harald Schachinger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WELSER PROFILE AUSTRIA GmbH
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WELSER PROFILE AUSTRIA GmbH
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Priority to PL09777439T priority Critical patent/PL2313216T3/pl
Publication of EP2313216A1 publication Critical patent/EP2313216A1/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
    • B21D5/08—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles making use of forming-rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D19/00—Flanging or other edge treatment, e.g. of tubes
    • B21D19/02—Flanging or other edge treatment, e.g. of tubes by continuously-acting tools moving along the edge
    • B21D19/04—Flanging or other edge treatment, e.g. of tubes by continuously-acting tools moving along the edge shaped as rollers
    • B21D19/043—Flanging or other edge treatment, e.g. of tubes by continuously-acting tools moving along the edge shaped as rollers for flanging edges of plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H7/00—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
    • B21J5/08—Upsetting

Definitions

  • the invention relates to a method for producing a cold-rolled profile with at least one thickened profile edge of a metal strip.
  • Rolled profiles are known in various embodiments and in a variety of manufacturing processes. Corresponding profiles are created starting from a substantially rectangular, elongate, flat metal band usually by bending or rolling the metal strip or strip.
  • bending or rolling includes all operations that can be used to make the metal band blank into the desired shape, e.g. also bending, bending, embossing, etc.
  • the shape of the flat metal band can here substantially be made without changing the material thickness or include methods in which a profile is made of a metal strip whose cross-sectional area does not have a constant thickness, but aware areas larger and smaller Material thickness has.
  • One possible profile is e.g. a C-shaped mounting rail, as well as an anchor rail, which is usually produced by hot rolling or cold profiling.
  • Hot rolled profiles are rolled out of a steel block, whereby the heated steel block passes through about 8 different rolls, each of which has several so-called stitches, which are passed through with different times.
  • the share of material costs is over 70%, so saving on the material drastically reduces the overall cost.
  • a method for changing the thickness of a metal strip is for example from DE 197 43 093 known.
  • a metal strip is formed with molded thinner strips in which the tape is pulled through a drawing gap, which employed from the front of a tilted Work roll and a support roller is formed, which may be formed as a work roll.
  • a drawing gap which employed from the front of a tilted Work roll and a support roller is formed, which may be formed as a work roll.
  • JP 55141330 Another method for producing a metal strip with different thicknesses and in particular with a thicker edge is known from JP 55141330 known.
  • a light metal strip is first passed through a pair of rollers, wherein a roller is provided with end portions which are beyond the actual roller surface and wherein the second roller has a smaller width than the first roller, and is disposed between the end portions of the first roller. If the light metal is passed through the nip, there is a displacement or flow of the material towards the end regions, which are formed thickened in this way.
  • Object of the present invention is to provide a method for producing a profile with different wall thicknesses, which is particularly economical to perform, and wherein the corresponding profile produced by particularly low material costs as well as manufacturing costs is.
  • This object is achieved for a method for producing a cold-rolled profile with at least one thickened profile edge of a metal strip, characterized in that the metal strip is guided by at least one nip formed by a guide roller and at least one lateral edging roll, wherein the roller axis of the guide roller parallel to the Band level of the metal strip is arranged, while the roll axis of the compression roll is arranged transversely to the roll axis of the guide roller and is inclined to the belt plane employed that of the compression roller in addition to the force exerted on the belt edge compression force acting on the side facing away from the guide roller side of the metal strip clamping force is applied, wherein the compression roller is formed step-shaped and surrounds the band edge at least on the side facing away from the guide roller of the metal strip.
  • the profile is made of a metal strip, which already has the desired thinnest thickness, and thickened only by compression in the areas where thickening is required. In this way, the profile can be produced more precisely by considerably fewer work steps become. Since not the total thickness of the metal strip is changed during the process, the material costs can be kept as low as possible. According to the method of the invention substantially no undesirable stresses are introduced into the material.
  • the process is controlled in a simple manner. There is a uniform flow of the metal in the desired direction.
  • the compression roll holds a surface, i. Upper or lower side of the metal band, so that the metal strip deforms targeted only in one direction, while the other side remains in the original state.
  • the step-shaped design of the compression roll ensures a targeted deformation of the metal strip, which is held firmly by the compression roll.
  • the angle between the roller axis of the guide roller and the roller axis of the compression roller may be between 92 ° and 100 °. Appropriate angles have proven particularly useful in practice and ensure a sufficient compression force and holding force of the compression roll safe.
  • Another preferred embodiment can provide that the stepped profile of the compression roll is extended to a band edge encompassing the U-profile on both sides, wherein the voltage applied to the side facing away from the guide roller free U-legs is designed to be considerably longer.
  • This embodiment prevents in particular the formation of metal burrs, which otherwise often occur in upsetting processes between the individual rollers. As a result, the post-processing of the metal strip can be reduced to a minimum and the total cost can be kept low.
  • At least one of the edging roller facing end portion of the guide roller may extend convexly at a predetermined angle.
  • the upsetting may be performed in a plurality of steps, wherein at least the convex end portion guide roller is exchanged for a guide roller after each upsetting step, at least one end portion of which runs convex at a greater angle than the preceding one. Since the change in shape of the metal strip is carried out in slow steps, the desired shape can be achieved particularly precisely without the material to be deformed being exposed to excessive stresses.
  • angles of the at least one convex end portion of the guide roller may vary in steps of 1 to 10 °, preferably 2 to 5 °. These angles have proven to be particularly preferred in practice to perform a smooth change in shape.
  • an additional support roller may be provided, which is arranged opposite the guide roller, so that the metal strip is additionally clamped between the guide roller and the support roller, wherein the support roller is narrower than the guide roller and at least on one side up to the compression roller extends.
  • an improved guidance of the metal strip is achieved because a central region of the metal strip between the guide roller and the support roller can be maintained.
  • This also simplifies the structure of the compression roller, since the guide roller opposite the stepped portion or free leg must not be designed to be excessively long, e.g. Approximately to the middle of the metal strip, so that the compression rollers can be used flexibly and are cheaper to manufacture.
  • At least one deformation step for reshaping the thickened metal strip may follow the last swaging step. In this way, the formation of a desired profile in a single operation with the thickening of certain areas of the metal strip can be performed.
  • the at least one thickened profile edge can first be angled relative to the non-thickened region of the metal strip.
  • the bending of the thickened profile edge can be performed stepwise until the thickened surface opposite outer surface is angled at an angle of about 90 ° to the non-thickened areas. Since the bending is not abrupt, but slowly in several steps, again as little tension on the material are exercised.
  • the partially thickened metal strip can be formed into a C-shaped mounting rail.
  • the method according to the invention has proved to be particularly suitable for a corresponding element.
  • FIGS. 1 and 2 a) to c) schematically shows the method for achieving a change in thickness at the strip edges of a metal strip.
  • FIG. 1 a metal strip 1 introduced into a rolling device with a first roll 2 and an oppositely disposed second roll 3, the metal strip 1 being held and guided between the two rolls.
  • the metal strip 1 in this case has a predetermined thickness, which coincides with the desired final thickness of the essential regions of the metal strip 1.
  • FIG. 2 Various steps for compressing the band edges of the metal strip 1 are shown in more detail, wherein three individual steps are shown, but the actual process may have a variety of other steps to achieve here a gradual change in the thickness of the strip edges, as well as the formation of a profile.
  • FIG. 2 a shown rolling device in that the roller 2 has been replaced by a guide roller 4 and the roller 3 has been replaced by a support roller 8, which is significantly narrower than the guide roller 3.
  • the width of the roller 8 is in this case selected such that the metal strip 1 extends on both sides beyond the end faces of the support roller 8 addition.
  • the formed between the guide roller 4 and the support roller 8 clamping gap in which the metal strip 1 is guided in this case has the same height as in FIG. 1 so that the thickness of the metal strip is not changed in the region of the roll surfaces arranged parallel to one another, the task of the two rolls is rather to hold and guide the metal strip during the laterally exerted compression.
  • the roll axes of both rolls 4 and 8 are arranged parallel to the strip plane.
  • the guide roller 4 extends on both sides beyond the support roller 8 and is formed chamfered in the region of the end faces 6 adjacent to the end faces 6 of the roll surface, so that the roll surface runs convex.
  • the metal strip 1 extends in the region of the guide roller 4 on both sides beyond the end faces 6 of the roller 4 also.
  • the actual upsetting operation is carried out by compression rollers 9, which are arranged on both sides on the end faces or the band edge 10 of the metal strip 1.
  • the roller axis of the compression roller 9 is arranged substantially transversely to the roller axis of the guide roller and inclined to the belt plane employed. This results in an angle ⁇ of more than 90 °, preferably between 92 ° and 100 °, between the roll axis 20 of the compression roll 9 and the roll axis 21 of the guide roll 4.
  • the compression rollers are formed profiled in the area adjacent to the metal strip 1 to the band edge and at least one adjacent end portion of the metal strip surface, ie the guide roller 4 facing away from the metal strip surface.
  • the compression roller is formed with a U-shaped profile, wherein the band edge is additionally encompassed on each metal strip surface of a respective free U-leg.
  • the U-legs are designed differently long, the free U-leg 22 on the metal band underside, ie on the side facing away from the guide roller 4 is much longer than the opposite U-leg 23, and extends substantially to the
  • the free U-leg 22 also has such dimensions that it extends beyond the convex end portions 6 of the guide roller 4 addition. As a result, the resulting stresses in this area are better distributed to the entire material. At the same time, the formation of burrs is suppressed.
  • the area of the metal strip 1 to be deformed is thus held during the swaging operation between the guide roller 4 and the compression roller 9, and the strip edges 10 of the metal strip are compressed by exerting a force by the compression rollers 9 in the direction of the clamping gap, whereby the material passes through this compression process deformed and penetrates into the formed between the convex end portions 6 of the guide rollers 4 and the free U-legs 22 of the compression rollers 9 nip.
  • the first compression step is completed when the existing in the region of the convex end portions 6 of the guide roller 4 and the compression roller 9 nip is completely filled by the material of the metal strip 1, i. the band edge was deformed by compression.
  • the guide roller 4 is replaced by a new guide roller 7, which in turn has a smaller width than the now partially thickened metal strip, so that the partially thickened metal strip extends at the two band edges on the end faces 5 of the guide roller 7.
  • the convex end portions 6 are more angled in the new guide roller 7, so that despite partially thickened end portion of the metal strip 1, a gap is still present, formed between the surface of the metal strip 1 and the convex end portions 6 of the guide roller 7.
  • the metal strip has no change, but continues parallel to the roll surface of the support roller 8 and parallel to the free U-leg 22 of the compression roller 9, which forms a plane with the roll surface of the support roller 8.
  • the upsetting roll 9 can also be replaced by a new one after each swaging step to accommodate the increasing deformation of the strip, e.g. to adapt the profiling of the compression roll of each new deformation.
  • the deformation of the metal strip 1 is carried out in slow steps, wherein the convex end portions 6 each taper at a greater angle, preferably in steps of three degrees, to a desired end bevel, such as in FIG. 2c) shown.
  • the compression roll 9 as in FIG Figure 2c shown to be formed with a stepped profile, with only a free leg 25 rests against the metal band underside and the remaining profile is arranged parallel to the end face 5 of the guide roller. This determines the final shape of the thickened area.
  • FIG. 3 and 4 is the upsetting process again illustrated by a three-dimensional representation, wherein FIG. 4 an excerpt from FIG. 3 shows.
  • Both figures show how a middle region of the metal strip 1 is held between the guide roller 4 and the support roller 8.
  • Both rollers are arranged parallel to each other and the roller axes are parallel to each other and parallel to the belt plane.
  • the end portions of the guide roller are concave, ie they are provided with a chamfer. This area is used in the subsequent compression of the deformation of the metal strip.
  • the end portions of the metal strip 1, that is, the areas of the metal strip 1 extending beyond the back-up roll 8 are held on the metal band upper side by the guide roller and on the metal band lower side by laterally arranged back-up rollers 9.
  • the back-up rollers are tilted relative to the belt plane, ie they are slightly inclined downwardly away from the guide rollers. By this inclination of the support rollers 9 can Also be transmitted from the support rollers 9 on the underside of the metal strip sufficient force to prevent deformation here.
  • the support roller is formed profiled, so that not only a portion of the metal band underside, but also the band edge and a portion of the metal band top is enclosed by the support roller. However, in contrast to the leg 22 of the support roller resting against the underside of the metal band, which extends clearly beyond the region to be thickened, the metal band upper side is only guided over part of the thickened region.
  • the area between the two U-legs, as shown in the present example may be rounded to deform the metal strip 1 corresponding to the rounding.
  • the metal strip 1 is formed by the desired number of compression steps with a thickened band edge, wherein the thickened region is formed only in the region of a surface of the metal strip 1 as at a predetermined angle outwardly uniformly extending end portions, the metal strip thus obtained is in a deformed immediately following the compression deformation processes to the desired final profile.
  • FIGS. 5 a) and 5 b) Here are shown different steps during the deformation, once, as in FIG. 5 shown after the thickened surface has been bent at an angle of 90 ° to the unchanged surface of the metal strip 1, as well as in FIG. 5 b) , the finished angled profile, wherein the two thickened end portions extend toward each other, and the unchanged surface of the metal strip 1 is angled at an angle of 90 °.
  • FIG. 6 a) and 6 b) show here two partially deformed profiles during the deformation process.
  • the finished deformed profile in the form of a C-rail is finally in FIG. 6c) shown.
  • the finished profile comprises a base region 10 and two legs 11 and 12 extending perpendicular thereto, to which the angled thickened finally Connect area.
  • the angled thickened areas extend toward each other, wherein a gap is formed between the two areas.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Control Of Metal Rolling (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Forging (AREA)

Claims (12)

  1. Procédé pour fabriquer à partir d'une bande de métal un profilé laminé à froid (1) avec au moins un bord de profilé épaissi, caractérisé en ce que
    la bande de métal (1) passe à travers au moins un interstice de serrage formé par un cylindre de guidage (4) et au moins un cylindre latéral de compression (9),
    étant précisé que l'axe (21) du cylindre de guidage (4) est disposé parallèlement au plan de la bande de métal (1),
    tandis que l'axe (20) du cylindre de compression (9) est disposé transversalement par rapport à l'axe (21) du cylindre de guidage (4) et est incliné par rapport au plan de la bande de telle sorte que le cylindre de compression (9), en plus de la force de compression exercée sur le bord de la bande, applique aussi une force de serrage qui agit sur la face de la bande de métal (1) opposée au cylindre de guidage (4), étant précisé que le cylindre de compression (9) a une forme étagée et entoure le bord de la bande au moins sur la face de la bande de métal (1) opposée au cylindre de guidage (4).
  2. Procédé selon la revendication 1, caractérisé en ce que l'angle entre l'axe (21) du cylindre de guidage (4) et l'axe (20) du cylindre de compression (9) est situé entre 92° et 100°.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que le profil étagé du cylindre de compression (9) s'élargit en un profil en U (22 ; 23) qui entoure des deux côtés le bord de la bande, étant précisé que la branche libre (22) du profil en U qui est appliquée contre le côté opposé au cylindre de guidage (4) est nettement plus longue.
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce qu'au moins une section d'extrémité du cylindre de guidage tournée vers le cylindre de compression a une forme convexe suivant un angle prédéfini.
  5. Procédé selon la revendication 4, caractérisé en ce que la compression est réalisée en plusieurs étapes, étant précisé que le cylindre de guidage (4), au moins, est échangé après chaque étape de compression contre un cylindre de guidage (4) dont au moins une zone d'extrémité a une forme convexe avec un angle plus grand que le précédent.
  6. Procédé selon la revendication 5, caractérisé en ce que les angles de la ou des zones d'extrémité convexes du cylindre de guidage (4) varient par étapes de 1 à 10°, de préférence de 2 à 5°.
  7. Procédé selon l'une des revendications 1 à 6, caractérisé par un cylindre de support (8) qui est disposé en face du cylindre de guidage (4), de sorte que la bande de métal (1) est serrée en supplément entre le cylindre de guidage (4) et le cylindre de support (8), étant précisé que le cylindre de support (8) est plus étroit que le cylindre de guidage (4) et s'étend au moins sur un côté jusqu'au cylindre de compression (9).
  8. Procédé selon l'une des revendications 1 à 7, caractérisé en ce qu'après la dernière étape de compression, au moins une étape de déformation est effectuée pour déformer la bande de métal (1) épaissie.
  9. Procédé selon la revendication 8, caractérisé en ce que le ou les bords de profilé épaissis sont pliés par rapport à la zone non épaissie de la bande de métal (1).
  10. Procédé selon la revendication 9, caractérisé en ce que le pliage du bord de profilé épaissi est réalisé par étapes jusqu'à ce que les sections d'extrémité de la surface extérieure opposée de la bande de métal (1) qui correspondent à la surface épaissie soient pliées suivant un angle d'environ 90°, de sorte que les surfaces épaissies se font face directement.
  11. Procédé selon l'une des étapes 1 à 10, caractérisé en ce que la bande de métal (1), dans la zone non épaissie, est transformée par au moins un procédé de pliage en forme profilée voulue.
  12. Procédé selon la revendication 11, caractérisé en ce que la bande de métal (1) est transformée en un rail de montage en C, étant précisé que les deux sections d'extrémité épaissies sont disposées en s'étendant l'une vers l'autre.
EP09777439A 2008-07-24 2009-07-24 Procédé de fabrication d'un profilé laminé à froid présentant au moins un bord profilé épaissi Active EP2313216B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09777439T PL2313216T3 (pl) 2008-07-24 2009-07-24 Sposób wytwarzania walcowanego na zimno kształtownika z przynajmniej jedną pogrubioną krawędzią kształtową

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008034488 2008-07-24
PCT/EP2009/005403 WO2010009898A1 (fr) 2008-07-24 2009-07-24 Procédé de fabrication d'un profilé laminé à froid présentant au moins un bord profilé épaissi

Publications (2)

Publication Number Publication Date
EP2313216A1 EP2313216A1 (fr) 2011-04-27
EP2313216B1 true EP2313216B1 (fr) 2011-12-28

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EP09777439A Active EP2313216B1 (fr) 2008-07-24 2009-07-24 Procédé de fabrication d'un profilé laminé à froid présentant au moins un bord profilé épaissi

Country Status (7)

Country Link
US (1) US8959975B2 (fr)
EP (1) EP2313216B1 (fr)
AT (1) ATE538883T1 (fr)
DK (1) DK2313216T3 (fr)
ES (1) ES2377825T3 (fr)
PL (1) PL2313216T3 (fr)
WO (2) WO2010009751A1 (fr)

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CN102240752A (zh) * 2011-05-17 2011-11-16 吴江市华源印铁制罐有限责任公司 方罐底盖预弯机
DE102021103576A1 (de) 2021-02-16 2022-08-18 Fischerwerke Gmbh & Co. Kg Querstauchwalzen

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JP6445779B2 (ja) 2014-04-21 2018-12-26 川崎重工業株式会社 予備成形体および軸対称部品の製造方法
EP3396096B1 (fr) * 2017-04-28 2020-02-19 RP Technik GmbH Profilsysteme Profilé composite et son procédé de fabrication
CN111421052A (zh) * 2019-12-19 2020-07-17 东北大学无锡研究院 一种折叠斜腿哈芬槽钢及其制备方法

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Publication number Priority date Publication date Assignee Title
CN102240752A (zh) * 2011-05-17 2011-11-16 吴江市华源印铁制罐有限责任公司 方罐底盖预弯机
CN102240752B (zh) * 2011-05-17 2013-02-13 苏州华源包装股份有限公司 方罐底盖预弯机
DE102021103576A1 (de) 2021-02-16 2022-08-18 Fischerwerke Gmbh & Co. Kg Querstauchwalzen
WO2022175069A1 (fr) 2021-02-16 2022-08-25 Fischerwerke Gmbh & Co. Kg Laminage transversal

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WO2010009751A1 (fr) 2010-01-28
US8959975B2 (en) 2015-02-24
WO2010009898A8 (fr) 2010-03-18
WO2010009898A1 (fr) 2010-01-28
ES2377825T3 (es) 2012-04-02
DK2313216T3 (da) 2012-02-06
US20110197646A1 (en) 2011-08-18
EP2313216A1 (fr) 2011-04-27
ATE538883T1 (de) 2012-01-15
PL2313216T3 (pl) 2012-05-31

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